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Bring the bags you already have
The useful change is repeated reuse, not buying another bag.
What changes the result
The environmental break-even point depends on its material and how often it is used.
Check what you already own before buying something. The benefit comes from repeated use.
References in the original project +
European Commission (2023); Danish EPA LCA (2018)
These bibliographic references come from the original cards. They provide context; they do not validate every numerical assumption below.
